516722142 has 16 divisors (see below), whose sum is σ = 1057478400. Its totient is φ = 168235032.

The previous prime is 516722137. The next prime is 516722147. The reversal of 516722142 is 241227615.

It is an interprime number because it is at equal distance from previous prime (516722137) and next prime (516722147).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516722147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1001142 + ... + 1001657.

It is an arithmetic number, because the mean of its divisors is an integer number (66092400).

Almost surely, 2^516722142 is an apocalyptic number.

516722142 is an abundant number, since it is smaller than the sum of its proper divisors (540756258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

516722142 is a wasteful number, since it uses less digits than its factorization.

516722142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002847.

The product of its digits is 6720, while the sum is 30.

The square root of 516722142 is about 22731.5230901935. The cubic root of 516722142 is about 802.4519263523.

Adding to 516722142 its reverse (241227615), we get a palindrome (757949757).

The spelling of 516722142 in words is "five hundred sixteen million, seven hundred twenty-two thousand, one hundred forty-two".